Package kz.greetgo.util

Class RND

java.lang.Object

kz.greetgo.util.RND

public class RND
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	ALL
static char[]	ALL_CHARS
static java.lang.String	ALL_ENG
static char[]	ALL_ENG_CHARS
static java.lang.String	DEG
static java.lang.String	eng
static java.lang.String	ENG
static java.util.Random	rnd
static java.lang.String	rus
static java.lang.String	RUS

Constructor Summary

Constructors

Constructor	Description
RND()

Method Summary

Modifier and Type	Method	Description
static java.math.BigDecimal	bd(long max, int afterPoint)	Generates a random number of type BigDecimal in the range
static boolean	bool()	Generates random Boolean value
static byte[]	byteArray(int len)	Generates a random array with a length len
static java.util.Date	dateDays(int fromDaysBeforeNow, int toDayAfterNow)	Generates a random date in the range from fromDaysBeforeNow days ago, to toDayAfterNow days ago
static java.util.Date	dateYears(int yearFrom, int yearTo)	Generates a random date in the range from yearFrom years ago, to yearTo years ago
static <T> T	from(T... values)	Selects random element from varargs array
static <T> T	of(java.util.Collection<T> source)	Selects random element from list
static double	plusDouble(double max, int point)	Generates a random real positive number in the range
static int	plusInt(int max)	Generates a random positive number of type int in the range
static long	plusLong(long max)	Generates a random positive number of type long in the range
static <E extends java.lang.Enum<E>> E	someEnum(E... values)	Selects a random value from the values transmitted from enum
static java.lang.String	str(int len)	Generates random string with a length of len characters.
static java.lang.String	strEng(int len)	Generates random string with a length of len characters.
static java.lang.String	strFrom(int len, char[] availableChars)	Generates random string with a length of len characters.
static java.lang.String	strInt(int len)	Generates a string consisting of random numbers

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

rus

public static final java.lang.String rus

See Also:

Constant Field Values

RUS

public static final java.lang.String RUS

eng

public static final java.lang.String eng

See Also:

Constant Field Values

ENG

public static final java.lang.String ENG

DEG

public static final java.lang.String DEG

See Also:

Constant Field Values

ALL

public static final java.lang.String ALL

ALL_CHARS

public static final char[] ALL_CHARS

ALL_ENG

public static final java.lang.String ALL_ENG

ALL_ENG_CHARS

public static final char[] ALL_ENG_CHARS

rnd

public static final java.util.Random rnd

Constructor Detail

RND

public RND()

Method Detail

str

public static java.lang.String str(int len)

Generates random string with a length of len characters. Characters are selected randomly from the following array: Arabic numerals, Russian alphabet uppercase and lowercase, English alphabet uppercase and lowercase.

Parameters:

len - the length of generate string

Returns:

generated string

strEng

public static java.lang.String strEng(int len)

Generates random string with a length of len characters. Characters are selected randomly from the following array: Arabic numerals, English alphabet uppercase and lowercase.

Parameters:

len - the length of generate string

Returns:

generated string

strFrom

public static java.lang.String strFrom(int len,
                                       char[] availableChars)

Generates random string with a length of len characters. Characters are selected randomly from the array availableChars

Parameters:

len - the length of generate string

availableChars - the source of characters for generation string.

Returns:

generated string

strInt

public static java.lang.String strInt(int len)

Generates a string consisting of random numbers

Parameters:

len - the length of generate string

Returns:

generated string

plusLong

public static long plusLong(long max)

Generates a random positive number of type long in the range

0 <= x < max

Parameters:

max - the maximum value of the generate number

Returns:

generated number

plusInt

public static int plusInt(int max)

Generates a random positive number of type int in the range

0 <= x < max

Parameters:

max - the maximum value of the generate number

Returns:

generated number

dateYears

public static java.util.Date dateYears(int yearFrom,
                                       int yearTo)

Generates a random date in the range from yearFrom years ago, to yearTo years ago

Parameters:

yearFrom - as many years ago - range start in which date is generated

yearTo - as many years ago - range end in which date is generated

Returns:

randomly generated date

dateDays

public static java.util.Date dateDays(int fromDaysBeforeNow,
                                      int toDayAfterNow)

Generates a random date in the range from fromDaysBeforeNow days ago, to toDayAfterNow days ago

Parameters:

fromDaysBeforeNow - as many days ago - range start in which date is generated

toDayAfterNow - as many days ago - range end in which date is generated

Returns:

randomly generated date

byteArray

public static byte[] byteArray(int len)

Generates a random array with a length len

Parameters:

len - the length of generate array

Returns:

generated array

bool

public static boolean bool()

Generates random Boolean value

Returns:

generated random value

someEnum

@SafeVarargs
public static <E extends java.lang.Enum<E>> E someEnum(E... values)

Selects a random value from the values transmitted from enum

Parameters:

values - enum values

Returns:

randomly selected value

from

@SafeVarargs
public static <T> T from(T... values)

Selects random element from varargs array

Type Parameters:

T - any returning type

Parameters:

values - varargs source array

Returns:

random element from the array

of

public static <T> T of(java.util.Collection<T> source)

Selects random element from list

Type Parameters:

T - any returning type

Parameters:

source - source list

Returns:

random element from the list

plusDouble

public static double plusDouble(double max,
                                int point)

Generates a random real positive number in the range

0 <= x < max

Parameters:

max - the upper limit of the selected values

point - the number of decimal places

Returns:

generated number

bd

public static java.math.BigDecimal bd(long max,
                                      int afterPoint)

Generates a random number of type BigDecimal in the range

0 <= x < max

Parameters:

max - the upper limit of generate number

afterPoint - the number of decimal places

Returns:

generated number